.com, the inventors of this new way of gauging hot and cold:
The Exclusive AccuWeather RealFeel Temperature is an index that describes what the temperature really feels like. It is a unique composite of the effects of temperature, wind, humidity, sunshine intensity, cloudiness, precipitation and elevation on the human body--everything that affects how warm or cold a person feels.
Temperature by itself gives only part of the picture. Other measures, like the Wind Chill or Heat Index, include temperature and only one additional element like wind speed or humidity and many are designed to measure effects on an inanimate object or an unclothed person. None of them tell what it really feels like to an appropriately dressed person. Only The RealFeel Temperature includes everything that affects how warm or cold a person feels.